

Unless you have something completely esoteric, a power adapter you connect to your mains only provides a specific voltage and max amperage to your laptop. Assuming your connection to the laptop is appropriate you should be good. The charge controller is located in your laptop, not the adapter.
If you happen to have a relatively recent laptop with USB-C charging the key decision is already made - just get an adapter with a wattage that meets or exceeds what your laptop specifies and a decent USB cable.

+1 for GaN adapters - they pack a punch in a small package. I’ve replaced my original adapter for my Thinkpad as well as for my cell phone with a Belkin unit a while back. It takes much less space in my backpack.